Improvement in oscillating chairs



UNITED STATES PATENT QFFIOE.

JERSEY, ASSIGNORS OF OF SAME PLACE.

HENRY O. GUILDERSLEEVE AND MATHEW F. GRIMM, OF NEWARK, NEW ONE-THIRDTHEIR RIGHT TO THEODORE GRAY,

IMPROVEMENT IN OSCILLATING CHAIRS.

Specification forming part of Letters Patent No. [72,3 [0, dated January18,1876; application filed December 2, 1875.

To all whom it may concern Be it known that we, HENRY G. GUILDER- SLEEVEand lVIATHEW F. GR'IMM, of Newark, in the county of Essex and State ofNew J ersey, have invented certain Improved Springs for Rocking-Chairsand Cradles, of which the following is a specification:

Our invention consists in so arranging a spring, in combination with abracket on the sides of a chair, that it may be readily adjusted for usefor persons of different Weights, and requiring different angles of theback.

The figure is a side sectional elevation.

To the base A, which will ordinarily be of wood, we secure, at each end,a peculiar-shaped bow-spring, B. This spring rises from each end by agradual ascent to about half the distance from the base to thechair-seat G, where it connects with a bracket, D, secured to the seat.This bracket is usually made of castiron, but may be made of any othermaterial. The mode of connecting the spring with this bracket is thepoint on which the novelty of our invention rests. The top 0 of thespring is formed in the segment of a circle, and the lower part of thebracket has in it a recessed circle, f, made to fit over the part c, andto i turn on it, and the seat, when adjusted to the right position, issecured by the bolts 11 passing through a hole in each side of the partc and through a slotted hole in the circle f of the bracket. Thus theseat, with the brackets. is placed upon the top of the springs, and thebolts are put in with the nuts turned on loosely. When the chair isfixed in position the nuts are tightened and hold it firmly, and in thatway the chair is readily adapted to persons of ditt'crent weights. It"for a lighter weight the seat is set more inclined backward. If for aheavy person the seat will be set forward, which will save the springs.from breaking.

HENRY o. GUILD-ERSLEEVE. MATHEW F. GRIMM.

, Witnesses:

HORACE HARRIS, J. O. TUNBRIDGE.

